Full-cycle  stop for calculating machines



7, 1.925% l y l G. c. CHASE FULL CYCLE STOP FOR cALcJLAfINGV MACHINES' Flec Jan. 15. 1922 3 Sheets-Sheet 1` A I 40. ad

Hrrom/Er Juy 7, 1925.-

3 Sheets-Sheet 2 Filed Jem. 16, 1922 INVNTQR i o. ddl/ MUM/@ G. C. CHASE FULL CYCLE STOP FOR CALCULTING MACHINES July 7, 1925.` I 1,544,806

Filed Jan. 16, 1922 3 Sheets-Sheet 5- INVENTR a MM v m.

Patented July 7, '1925.

a UNITED s'iAiEs GEORGE C. CHASE, O'F SOUTH ORANGE, NEW JERSEY, SS-IGNOR T0 MONROE CAL-l CULATING MACHINE COMPANY. OF NEW YORK, N. Y., A CORPORATION OF NEW' YORK.

masas PATENr orifice.

, FULL-CYCLE sro? son CALCULATING' MACHINES.

Application le January 16, 1922. Serial No. 529,426.

To all whom it may Concern.'

Be it known that l, GEORGE C. CHASE, a citizen of the United States of America, resident of South Orange, in the county of Essex and State of New Jersey, have made a certain new and useful Invention in Full- Cycle Stop for Calculating Machines; and I declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in lthe art to which it appertains to make and use the invention,

reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

Figure lis a side View of a calculating machine to which my invention is shown as applied, with parts broken away.

Figure 2 is a similar View of tlie other side iiism shown in no-rmal position.^

Figure 3 is a side view of the stopping.-

anism of calculating machines, whereby the operation of divisio may be rendered automatic and certain ac vantages secured in the performance of other arithmetical processes. An object of the invention is to provide such a stop which will be automatically operable and releasable in the manipulation of an operating device or crank handle for the actuating mechanism. Other objects and advantages will appear.

The invention consists in the novel construction and combinations of parts, as here'- inafter set forth.

The accompanying drawings illustrate an embodiment of the invention as applied to a calculating machine of the type shown in the patent to E. F. Britten, Jr., No. 1,474,230. The above named patent discloses numeral wheel actuating mechanism of the reversible of the`machine, with the stopping mechal pivoted stop elecycle type, as set forth in relation to the calculating machine art in the co-pending application-of George C. Chase, Serial No. 602,366.

Such machines employ a cycle ofl not less than three phases, a phase of ordinal registration in mid-cycle and a phase of tens carrying registrationupon each side of the ordinal registration phase, the tens carrying phase which follows the ordinal registration alone being effective to register. The succession of the phases of the cycle may be reversed, so that the carry phase effective in positive registration, for instance, which follows the ordinal registration phase dur; ing additive registrations, will precede the latter phase in negative or subtractive calculations. This machine has a reversible drive, rotation of the crank handle in one direction being transmitted to the numeral wheels by direct gearing connection for the performance of arithmetical problems of one nature, as addition or multiplication, and reverse rotation of the crank handle being similarly transmitted and resulting in reverse rotation of the numeral wheels for the performance of problems of an opposite nature, as subtraction or division. It is, however, to be understood that in certain aspects the invention is adapted for use with machines operating upon other principles, as for instancewherein the numeral wheelsor the actuating mechanism or both rotate in one direction only, without reversal.

As clearly indicated in Patent No. 1,474,230, the full-cycle position 'of the driving mechanism is that wherein a similar degree of movement thereof in either direc? operation of the machine will be stopped at the end of any forward 'or reverse cycle vmovement of the actuating mechanism which involves atransition of the numeral wheel reading from positive to negative or' this purpose advantage ist-aken of theacti'on of the decimal carry mechanism involved in 1n said transition, wherein a carry from the lower order` wheels is eective .upon the' numeral wheel related to the highest order carry mechanism, so that the latter wheel may be employed to control the stop when ever it passes forwardly to or reversely loaded in this transitional carrymovement,`

the numeral from thezero registering'position. In order that the numeral wheel shall notbe overarrangenient is used whereby wheel of highest cariy order acts merely to release an energized member, which in turn effects the stopping action 4In the drawings the numeral 2 designates the transversely-shiftable carriage, wherein are mounted the numeral wheels 13, the gears a trigger-likeof which are adapted to mesh with the intermediate gears 12, the latter being driven by the differential actuating gears 5 upon'the shaft 4, all as disclosed in the above-named application. Amounts set up by the select-V ing mechanism are registered upon the n u- 4meral wheels by manipulation of the crank handle 3, having driving` connection with the shaft 4 by means of a train of gears 76,

75, 80vand 81.

Upon the left-hand end of shaft 4 is a crank arm 20, having a linkv connection 2l with rock-lever 22, pivoted at 23 to theframing of the machine. An arm 24, also pivoted at 23, has'pivotally mounted thereon a stop element 2,5, located in the plane` of and iior` mally outside the path of movement of the rock-lever 22. The arm 24 has a retraction spring 28 holdingthe arm normally in rearward position with a. suitable lug thereof,

in contact with stop 29. The tendency of vthe spring 26 to move element 25 pivotally into stopping position, and through contact of the lug 30 of the elementwith the end of trigger 31, to move the arm 24 forwardly, is

resisted by the strong spring 28 of the arm.

The numeral wheels 13 are provided with pins g, acting to initiate a carry to the next higher wheels in the usual manner, and the pin q of the particular numeral wheel which may be in engagement with the cooperating carry member at the. left-hand end of the carry meclianisinwill always be in position to contact with the double-beveled cam face of the rock-lever 22 as the latter begins its next forward stroke. Ample time is provided for this movement by the positioning mageos of the parts so thatfthe release of element 25 i V will take place while4 the crank arm 2O is 1 near itsdead @enter position with relation t'o link 21, and consequently while rock-lever 22 i' is moving slowly.' The trigger 31 being-so operated by tliepin g, and the element 25 be- 'ing moved as stated,.the lugof this element will move beneath the forward arm of the trigger, whichwill ride upon sai-d lug during the forward movement of the rock-lever 22' until the latter, through contact l with the element 25, hasy moved said element `and thei arm 24 as a unit sufficiently iloilward to move, l

the lug of the element 25 from beneath th forward end of thetrigger 31, the latter being then operated by its spring to contact with its stop 31', or'to the position shown in. figure 3, ready to engage with the lug of the stop element 25 in the return movement of the parts, to thereby restore said element to normal energized position.

The arm' 24 will be moved forwardly as stated until it engages at 34 `iii-ith a suitable fixed stop, shown as a buffer device 29" upon lthe stop 29, thereby limiting Vtheforward stroke of the rock-lever 22 and further rotation of the shaft 4 and crank handle 3 in this direction. y

',Upon reverse move-ment of the driving mechanism, and during the time that the crank arm 20 is swinging to its dead center position as shown in Figure 2, the normal spring 28 restores the arm 24 toits normal position, in contact with` stop 29. The stop element 25 remains in engagement with the lUl free end-27 of"rocklever 22 until lug 30 of element 25 contacts with the forward end of the trigger 31, whereupon the retraction,A

spring 28 overcomes the weaker spring 26 of said stop element, raising the rear end therei of from enga'genient with said lfree endi 27,

the parts now being in their normalposit-ion as shown in Figure 2, and said end,27 being now free to pass beneath stop element 25 until trigger 31 is again tripped.

lA gear wheel 35, 'mounted upon the intermediate gear shaft and corresponding to the gear wheel 12 of theapplication Serial No. 373,834, of E. F. Britten, Jr.; meshes with 'the gear of the numeral wheel 13 related at the time tofthe cooperating member of the left-hand end of the carrry mechanism of the machine, a. springpressed check and aligner device having a tooth 36 adapted lo enter between the teeth of the gear S55, al-

thoughlhe device may have its tooth engage directly the numeral wheel gear or any gear in train therewith.

The spring 37 of Athis device is of light tension, sufcient to provide for an overthrow checking action but too light for the purposes of alignment of the numeral wheels. A

The device is therefore made in compound lever form, the tooth being upon oneinember 38 thereof, which is connected to vthe other member 39 by a strong spring 40, holdmg the members in contact with each other at 41. The member 39 has a' double-beveled cam end 42, and the cra-nk arm 20 of the ltering operation, and the tooth36 of the Cal aligner device being at-the end o this movement not fully seated between theteeth 'of the gear 35,l the cam end of the lever member 39 will be located in the pat-h of movement of the cam end of the crank arm 20, thereby at the end portion of the movement of said arm forcing said member 39 rearwardly, out of contact with the member 33, which is 'thereby atonce brought under the influence of the stronger spring 40, the latter beingof sufticient strength to complete the step of numeral wheelnrovement, or to align the numeral Wheel, by causing the tooth 36 to engage lfully between the teeth of the gear 35.

The numeral wheel 13 at the eXtreme/letthand .end ot the carriage, being ofthe highest order, has no carry impulse to initiate, and

therefore has no ping. It also happens that this highest order numeral wheel, when the carriage is in extreme right-hand position, occupies a position to the right of the left-- hand member of the carry mechanism and so tar to the right of the trigger 31 that a pin upon this wheelcould not lcontact with the cam 'end 3%of said trigger. i

To provide for operation of theivention under these conditions, the trigger 31 is provided with an extension branch 43, and the highest order numeral wheel is provided with a pin 45, of location corresponding to that of the pins g of the other wheels but longer than said pins, being adapted to engage the double-beveled cam end y32 of trigger 31 or thedouble-beveled cam end 44 of the branch 43, to trip the trigger as the highest order wheel passes to decimal position, In order, however, that the pins q of the said other numeral wheels shall not engage said extension fork (which they must not do),

said fork is locatedoutside of their path.

Then the crank handle is in full-cycle position, at the beginning and end of each cycle of operation' in either direction ot rotation, the left-hand crank arm 20 of the shaft 4 will occupy a dead center position with relation to link 2l, and the cam face ot said arm will lie in itsposition of greatest proximity to the cam tace 42 of the lever member 39. The stop element 25 having been tripped by operation of the trigger 31, and the crank arm 2O and crank handle 3 having rotated about 4() degrees from fullcyc-le position in either directiomthe stop will become effective. and during this dev gree` movement in either direction the spring 28 will add materially to the load upon the handle, thereby cushioning the impact and making the stop less abrupt. The spring Q8, however, need not be relied upon for this purpose, as obviously any ordinary type ot' friction governor or dashpot mechanism may be employed. The 40 degrees oi movement, more on less, between full-cycle and stopping position corresponds to a portion of the cycle in which no drive occurs to thc numeral wheels, as previouslyY stated. It will be noted that, the stop having been efected, so that further rotationvof the crank .handle in the same direction is checked or arrested, the stop element 25 will be returned to and relatched in full-cycle position -upon the return to normal position of the crank handle, so that continued reverse operation of the crank handle and of the machine will not be interfered with until another tripping of the trigger 31 occurs. It will also be noted that, the crank handle having been returned to full-cycle position and the stop element 25 having also been returned to and relatched in normal position, another forward movement or rotation ot the crank handle may take place. Should the operator release the crank handle in stopped position, the return of the parts to full-cycle position and the consequent relatching of the stop element 25 will be effected antomatically by the action of spring Q3 in returning the link 21 and crankarm 2O to dead center position.

The effect of the stop is toarrest the operation whenever a carry is lost by non-registration thereot, owing to the limitation of capacity of the machine. Its utility in performing 'addition and in multiplication will be mainly to call attention to the fact of this loss of carry. In operations involving subtraction it will also be of service as indieating the passage from a positive to a negative ,registration For instance, in checking' up a bank account, it would indicate an overdraft, but would not interfere with the registration of further deposits or checks, and upon the account again showing a balance in favor of the depositor this would in turn be indicated. Inf division it may be used in one of a number of ways to render the operation automatic, by relieving the operator of theA necessity ot observing thc figures ol the successive remainders as they are registered upon the numeral wheels, orl other equivalent observation necessary in dividin`g by the methods commonly in usc.

In the preferred automatic method ol' performing division, the dividend having been registered upon the numeral wheels 13. the counting dials cleared and the carriage prop- .erly adjusted. the divisor is set up on the 1 handle will again be stopped. If the probi0 tient figures, the carriage is now shifted and lem requires-carrying out to additional quothe operation repeated,A the stop affording a convenient position of rest for the hand upon .the crank handle during this shifting operation. Should the operation be carried to more'places than is necessary, the stop will act upon the first subtractive stroke, and the succeeding additive stroke will leave the registration correct.

In the present invention, thc-'application of controlling means to a nrach'ine employing rotary registering means is greatly facilitated by the employment of a reciprocatory or oscillatory driven member. This is particularly evident in the application of cushioning means to a reversible machine, as 'illustrated herein, wherein two distinct radial stopping positions are provided, and wherein the employment of the oscillatory member allows the stopping Contact to be made in a single position and by movement of 4a contacting part in a single direction.

The application of a full-cycle stop dey vice to a machine having driving means reversible as a whole, or having reversely operable digit-selecting members, as distinguished from a reversing switch machine, is'

of particular advantage in the performance of division. matic performance of division involves the reversal of the operating means following a particular movement of a numeral wheel, such reversal in the present instance being accomplished by a continuation of the crank handle operation in a reverse direction, and

being timed by thc operation of the stop. This avoids the necessity for throwing a switch,` which,- if manually accomplished, interrupts the continuity of the operation and the automatic character thereof; and if automatically accomplished acts to loadthe carry motion of the numeral wheel to a serious extent, since this motion must reverse the drive of each numeralwheel in the machine.

I claim: v

l. `*In a calculating machine, numeral wheels, actuating mechanism therefor, and Ameans for stopping said actuating mechanism including a normally energized restrained element and trigger means controlled by the numeral wheels upon rotation thereof in either direction for tripping said element. l

2. Iii a calculating machine, numeral As has been seen, the auto` wheels, actuai'gig mechanism therefor, and means for stopping said actuating mecha'- nism 'adjacent full cycle position, including I a normally energized restrained element and trigger means controlled by the numeral wheels upon rotation thereof in either direction for tripping said element.

4. In a calculating machine, i'eversiblc numeral wheels, actuating mechanism therefor having a reversible cycle of operation,

vmeans for stopping the actuating mechanism adjacent full-cycle position including 'a normally energized restrained element ahd trigger means for automatically tripping said element upon forward or reverse operation of the actuating mechanism. A

5. In a calculating machine reversible numeral wheels, actuating mechanism therefor having a'reversible cycle of operation, means for stopping the actuating mechanism adjacent full-cycle position including a. normally energized restrained element and trigger means for automatically tripping said element upon forward or reversed operation of said mechanism, said element be,- ing adapted to be restored to normal restrained position upon reverse movement of said mechanism.

6. In a calculating machine, reversible numeral wheels, actuating mechanism therefor having a reversible cycle of operation, and' automatic means for stopping the actuating mechanism adjacent full-cycle position in either direction of movement, including a able into the path of said member, and triger means controlled by the numeral wheels h n u u for tripping said element. Y

8. In a calculating machine, numeral wheels, reversible actuating mechanism therefor, and means for stopping the actuating mechanism adjacent full-cyclc position andi against movement in one dii'ec- .meansfor stopping the actuatingniechanism adjacent full-cycle position adapted to be released automatically upon a successive movement of said actuating mechanism.

11. In a calculating machine, numeral Wheels, actuating mechanism therefor, means controlled by said wheels for stopping the actuating mechanism, said Wheels and the stopping means being shiftable relatively to each other and the stopping means being adapted in cooperation With asingle numeral wheel to effect the stop in either of two relatively shifted positions of the Wheel and sai means.

1 In a calculating machine, numeral Wheels, actuating mechanism therefor, said Wheels and said actuating mechanismbeing 'relatively shifta'ble toeach other, means 'for stopping the` actuating mechanism adapted in cooperation with a plurality of numeral Wheels to effect the stop in a plurality of shifted positions of the wheels and said.

actuating mechanism and further adapted in cooperation with a single numeral Wheel to effect the'stop lin a plurality of relatively for stopping the actuating mechanlsm in-- shifted positions of the wheel and said mechanism. A

13. In a calculating machine, numeral Wheels, actuating mechanism therefor, means cluding a'lever having a lateral extension, said Wheels and the stopping means being shiftable relatively to each other, and el'efuente related eahf to a numeral Wheel for mgaging said lever to 4effect the stop in a selatively shifted position of the Wheels and said means, the elementsrelated to one of said numeral Wheels being extended to engage the lateral sxtensionof said lever to eiect the stop in another relatively shifted position of the wheels and said means.

14. In a calculating machine, reversible numeral AWheels,actuating means therefor having a reversible cycle of operation, and means controlled by the numeral Wheels for retarding and thereafter stopping said actuating means.

15. In a calculating machine, numeral wheels'actuating mechanism therefor, means for stopping the actuating mechanism including a to-'and-fro member, a. normally ei'iergized restrained element: movable into the path vof said membenand a trigger device controlled by the numeral wheels for automatically tripping said element, and means for cushioning the stopping means.

16. In a calculating machine, numeral Wheels, actuating mechanism therefor, means for stopping the actuating mechanism including a rock lever, a normallyl energized' restrained pivoted element movable into the path of said rock lever, and a trigger controlled by the numeral Wheels for automatically tripping said element, and means for cushioning the Stopping means.

17. In a calculating machine, numeral Wheels, actuating mechanism therefor, means for stopping the actuating mechanism in-A cluding a rock lever, a pivoted arm, stop means therefor at the end of the movement thereof in either direction, a strong spring Aholding said pivoted arm normally retracted, a pivoted element mounted upon said arm,

having a Weak spring and movable thereby into the path of said rock lever, and trigger means controlled by the numeral wheels for automatically tr-ipping said element and normally holding the same under restraint with its spring tensioned.

18. In a calculating machine, numeral Wheels, reversible actuating mechanism therefor, and means for stopping the actuating mechanism in one radial position during forward rotation and in another radial position during reverse rotation thereof.

19. In a calculating machine, numeral wheels, dierential actuating mechanism therefor, and means for stopping the actuposit/ion and mechanism in one radial position during for- Ward rotation and in another radial osition during reverse rotation thereof, an means for cushioning the stopping means.

22. In a. .calculating machine, numeral Wheels, differential actuating mechanism therefor, means for stopping the actuating mechanism in an idle. position and beyond full-cycle position, and means for retarding said actuating mechanism during the passage thereof from full-cycle to said idle position.

23. In a calculating machine, numeral wheels, actuating mechanism therefor operableV selectively in a forward or reverse direction in the performance of problems of opposite nature, means for stopping the therefor,

actuating mechanism in anidle position and beyond full-cycle position in either Adirection of movement thereof, and means -for retarding. said actuating mechanism during the 'passage thereof in either direction from full-cycle to said idle position.

24. In a calculating machine, numeral wheels, differential actuating mechanism therefor, means for stopping 4the actuating inechanismin an idle position andbeyond full-cycle position, and means for automatically returning the driving mechanism to full-cycle position.

25. In a calculating wheels, reversible actuating mechanism means for stopping the actuating mechanism in one radial position during forward rotation and in anothei` radial position during reverse rotation thereof, and means .for automatically returning the actuating mechanism to full-cycle position from either of said radial positions. I

26. In a 'calculating machine, numeral wheels,n differential actuating mechanism therefor, meansfor stopping the actuating mechanism in an idle position and beyond full-cycle position, and means for cushioning the stopping means during the passage of the actuating mechanism from full-cycle to said idle position, said cushioning means acting automatically to return the actuating mechanism to full-cycle position. z

27..In a. calculating machine, numeral Wheels, lreversible actuating mechanism therefor, means for stopping the actuating mechanism including a member operating at variable speed and a normally restrained element, and means for tripping said element as said member passes through a low speed position in either direction of move`l ment cf-said actuating mechanism.

28. In a calculating machine, numeral Wheels, actuating mechanism therefor, means for stopping the actuating mechanism including a member operating at variable speed and a normally restrained element movableinto the path of said member, and means for tripping said element* as said member passes through alow speed position.

29. In a calculating machine, numeral wheels, actuating mechanism therefor including a shaft andan operating device movable selectively in a forward 'or reverse direction in the performance oflfproblems of opposite nature,`

stopping the actuon said shaft and a member having an opei'- ating connection with said crank arm.v the cycle position at the end of the movement of said device in either direction.

30 In a calculating machine, numeral machine, numeral and means controlled by I the numeral wheels for ating mechanism. including a crank arm up- Wheels, actuating mechanism therefor including a shaft and an operating device I movable selectively in a forward or reverse direction'in the performance of problems of opposite nature; and means controlled by the numeral Wheels for stopping the actuating mechanism, including a crank arm upon said shaft, a rock lever and an operating rod connecting said rock lever withsaid crank, thelatter and said rod being located on dead center simultaneously with the location of said device at full-cycle position at the end' of the movement of said device in either direction. y

31. In a calculating machine, numeral wheels, actuating mechanism therefor in-A cluding a shaftand an operating device movable selectively in a forward or reverse direction in the performance of problems of opposite nature, and means controlled by the numeral wheels for stopping the actuating mechanism, including a crank arm npoii said shaft, a rock lever and an operating rod connecting said rock lever with said crank, the latter and said rod being located on dead center simultaneously with the location of said device at' full-cycle position at the end of the movement of said device in either direction, and means for cushioning the stopping means.

32. Inl a calculating machine, numeral Iwheels, actuating mechanism therefor in cluding a shaft and an operating device movable selectively in a.v forward or reverse direction in the performance of problems of opposite nature, and means for Vstopping the actuating mechanism including a crank arm upon said shaft, a member having an operating connection with said crank arm, the latter and said operating connection being located on dead center simultaneously with lthe location of said operating device at fullcycle position at the end of the movement of said-device in either direction, a. normally restrained element movable into the path of said member, and means controlled by the numeral wheels for automatically tripping said element. c

33. In a calculating machine, numeral Wheels, actuating mechanism therefor iucluding a shaft and an operating device movable selectively in a forward or reversi` directionin the performancel of problemsiof opposite nature, and cushioned means con.

trolled by the numeral wheels for stopping` the actuating mechanism, including a crank arm upon said shaft` a rock lever having a rod connection with said crank arm. the lat! ter and said rod being located on dead center simultaneously with the locationfof' said device at full-cycle position at theiend of; the movement of said device in either direction,a pivoted arm, stop means therefor at the end of the, movement thereof in either direction, a strong spring holding said piv;

oted arm normally retracted, a pivoted element mounted upon vsaid arm, having a Weak spring and movable Ythereby intofthe path of the rock lever, and a lever controlled by the numeral Wheels for` automatically tripping said element andnormally;holding the same under restraint with its spring tensioned. i

34.. In a calculating n1achiii"e,`numeral ivheels, actuating mechanisitherefor including decimal carry elements, means for stopping the actuating mechanism upon movement of a numeral Wheel to decimal position, in combination with means normally active under light spring tension to check said wheels against overrotation and intermittently active under strong spring tension to insure the completion of the step of numeral Wheelmovement to decimal position. Y

85. In a calculating' machinehnumeral Wheels, actuating mechanism therefor, including decimal carry elements, means for .stopping the actuating mechanism upon movement of a numeral Wheel to decimal position, in combination with means nor-- mally a-ctive to check said wheels against overrotation and intermittently ac'tive to in' sure the completionpf the step of numeral wheel movement to decimal position, including a two-part member, a st-rong spring holding the parts together, a light spring connected with one of the parts and acting to draw the other partrint'o engagement with the numeral Wheel, the stopping means being adapted to separate the parts against the tension of said strong spring.

256. In a calculating machine, numeral wheels having projections, actuating mechanism therefor including decimal carry elements, means including a spring-retracted trigger engaged by said projections and an element normally energized andY restrained' by said trigger for stopping the actuating mechanism upon movement of a numeral .ivhec-l to decimal position, said element engaging said trigger when the latter is in normal position and being thereby returned to normal energized position upon a successive operation of the driving mechanism, the projections engaging the trigger to prevent the complete return of the latter to normal position until the completion ot the step of numeral Wheel movement to decimal position. and means for insuring the completion of the step of numeral Wheel'movement' to decimal position. l

3T. In a calculating machine, numeral wheels. reversible actuating means therefor comprising an operating device and reversible rotary driving elements, and means including an oscillatory member, driven by one of said rotary elements. for controlling the action of said actuating means.

38. In' a calculating machine, numeral Wheels, reversible actuating means therefor comprising an operating device and reversible-rotary driving elements, and means including an oscillatory member. driven b v one of said rotary elements, for stopping the actuating means.

39. In a calculating nmchine. numeral wheels, actuating means therefor lsurprising an operating device and rotary driving clements, and means controlled by the numeral Wheels and including an oscillator@v inemeen driven by one of said rotary elements, for stopping the actuating means.

elt). In a calculating machine, numeral wheels, actuating means therefor comprising an operating device and rotary driving elements, and means controlled by the numeral wheels and including an oscillatory member, driven b v one ot' said rotary'elements, tor controlling the action of said actuating means.

Y1. In a calculating machine, numeral vvlieels, actuating means therefor comprising an operating device. and rotary driving elements, and means including an oscillatory member, drivelrby one ot' said rotary elclnents, a nonnally restrained element movable into the path of said oscillatory member, and means for tripping said retraincd element, for .stopping the actuating means. 4Q. In a calculating machine, numeral ivlieels, reversible actuating means therefor comprising an operating device and reversible rotary driving elements, and means including an oscillatory member, driven by one of said rotary elements, a normally restrained element movable intojthe path oi said' oscillatory member, and means 'or automatically tripping said element upon forvvard or reverse operation of the actuating means, for stopping said actuating means adjacent full-cycle position.

43. In a calculating machine, numeral wheels, reversible actuating means therefor comprising an operating device and reversible rotary driving elements, and means including an oscillatory member, driven by one of said rotary elements, adapted to stop forvard or reverse movement otl the actuating means adjacent full-cycle position and against movement in one direction only.

elet. Ina calculating machine. numeral Wheels, actuating means tlterel'or comprising an operating devicegand rotarv drivingl elements, and means includingan oscillator)v member, driven by one otx said rotary clements, for retarding and tlrerca'i'ter stopping thc actuating mechanism adjacent fullcycle position.

45. In a calculating machine. numeral ivheels, reversible actuating means therefor` comprising an operatingdevice and reversible rotary driving elements. and means including an oscillatory member. driven by one of said rotaryv elements, lor retarding lltl and thereafter stopping the actuating means adjacent full-cycle position.

46. In a calculating machine, numeral wheels, reversible actuating means therefor comprising an operating device and reversible rotary driving elements, and means in'- cluding an voscillatory member, driven by one of said rotary elements, adapted to stop forwardmovement of the actuating mechanism in one, 'radial position and to stop rverse movement thereof in another radial position.

47. In a calculating machine, numeral wheels, reversible actuating means therefor comprising an operating device and reversible rotary driving elements, and means including an oscillatory member, driven by one of said rotary elements, adapted to retard and thereafter to stop forward movement of the actuating mechanism in one radial position', and to retard and thereafter to stop reverse movement thereof in another radial position. v Y

48. In a calculating machine, numeral wheels, actuating means therefor coniprising an operating device andl rotary diiving elements, an-dmeans includingr an oscillatory member, driven by one of said rotary elements, adapted to stop'forivard movement of the actuatingvmcans in an idle position and beyond full-cycle position, and to retard said actuating means during the passage thereof Vfrom fiill-cycle to said idle position.

49. In a calculating machine, numeral wheels, reversible actuating means therefor comprising an operatingdevice and reversible rotary driving elements, and means including an oscillatory member, driven by one of said rotary elements, adapted to stop the actuating means in an idle position and beyond full-cycle position in either direction of operation, and to retard said actuating means during the passage thereof from full-l y cycle to said idle position in either-direction of operation.

50. In a calculating machine, numeral Wheels, actuating means therefor including digit-selecting members reversely operable to actuate the numeral Wheels ,forwardly or reversely, means controlled by a numeral ivheel for stopping the actuating means adjacent fiill-cycle position, and spring cushioning means for the stopping4 means.

5,1. In a calculating machine, numeral Wheels, actuating meanstherefor including digit-selecting members reversely operable to actuate the numeral Wheels forwardly or reversely, an'd means for stopping the actuating means adjacent full-cycle position,

- including a normally `energized restrained element, and trigger means controlled by a numeral Wheel for tripping said element during forward 6r reverse action of the .actuating means.

52. In a calculating machine, numeral `trolled by the numeral Wheels foi' tripping -nieans'for stopping said actuating mechanism adjacent full-cycle position in either SQ direction 0f movement, including a normally restrained element and means controlled b v the numeral wheels for tripping said ele-` ment, and means for automatically restoring said element to normal position.

54. In a calculating machine, reversible. numeral wheels, actuating means therefor having a reversible cycle of operation, and means for stopping said actuating means, including means operable to alloiv a retarded 4'movement thereof beyond and for returning same to normal full-cycle position.

In a calculating machine, reversible numeral wheels, actuating mechanism there'-I for having a reversible fcycle of operation, means for stopping said actuating mechanismv at a point beyond full-cycle position, including a normally restrained element and means controlled by the numeral wheels for tripping said element, and means for automatically restoring thev actuatingl mechanism from. said stopping position to fullfifi lll() cycle position and for restoring said element automatically to normal position.` 5G. In a calculating machine, reversible numeral wheels, actuating mechanism therefor having a'reversible cycle of operation and automatic means for stopping the actuating mechanism adjacent full-cycle position in either direction of movement, including a member similarly actuated throughout I.a forward or a reverse cycle of movement, a

normally restrained element movable into4 the path of said member, and means consaid element. 57. In a calculating machine, reversible numeral Wheels, actuating means therefor having a reversible cycle of operation and includingl reversible rotary elements. and means for controlling the action of said actuating means, having a direction of movement invariablewith relation` to the cycle of movement of the actuating means and ineluding a to-and-fro member, 'driven by one of said rotary elements. Y

58. In acalculating machine, numeral Wheels, actuating mechanism therefor including an operation controlling member provided with an idle movement, and means llll) controlled by the-numeral Wheels for stopping said actuating mechanism, said stopping means being adapted to be released by an idle movement of said operation controlling member. y

59. In a calculating machine, numeral Wheels, actuating means therefor including differentially acting members and a member manually operable to determinethe number 2" and means controlled by of cycles of operation, and means controlled by the numeral Wheels for stoppingv said differentially acting members, said stoppin means being adapted to be released by said manually operable member.

60. In a calculating machine, numeral Wheels, actuating means therefor including reversible rotar differentially acting membeis and a mem er manually operable to determine the number of cycles of operation,

the numeral wheels I for stopping forwarder reverse rotation of said differentially acting members, said stopping means being adapted to be released by said manually operable member.

61. In a calculating machine, numeral Wheels, differentially acting members and an operating crank manipulable to effect an indefinite number of cycles of operation, and means controlled by the numeral Wheels for stopping said differentially acting members, said stopping means being adapted to be released by said operating crank.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE C. CHASE. Vitne-sses P. F. HAnNE'rr, JOHN D. WEST.

actuating means therefor including 

